From: transfire@...
Date: 2006-06-16T01:16:08+09:00
Subject: Re: Why the lack of mixing-in support for Class methods?


Daniel Schierbeck wrote:
> #class_extension is now private, the magic has been moved to
> #append_features, and #class_extension has been undefined in Class, per
> T's request.
>
>    class Module
>      alias_method :__append_features__, :append_features
>
>      def class_extension(&block)
>        @class_extension ||= Module.new do
>          def self.append_features(mod)
>            __append_features__(mod)
>          end
>        end
>        @class_extension.module_eval(&block) if block_given?
>        @class_extension
>      end
>
>      private :class_extension
>
>      def append_features(mod)
>        __append_features__(mod)
>        mod.extend(class_extension)
>        if mod.instance_of? Module
>          mod.send(:class_extension).send(:include, class_extension)
>        end
>      end
>    end
>
>    class Class
>      undef_method :class_extension
>    end
>
> #send must of course be replaced with #funcall in 1.9 -- has there been
> any progress with the naming of that? I checked the archives, but
> couldn't find anything never than August '05... it sounds like a "fun
> call", if you know what I mean... hopefully you don't.

Isn't #funcall now called #instance_exec?

T.